I've made a simple sign tutorial, all you need is Photoshop, some grunge or fractal brushes and a font you like.
Brushes and fonts can be found at: http://www.deviantart.com/
Rapid Share: http://rapidshare.de/files/16138251/Tutsign.wmv.html
You send it: http://s12.yousendit.com/d.aspx?id=0CEUPE1...II109BCX6ITOBZW
Result:
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